{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["mythical figure", "geographical phenomenon", "instrument"], "input": "The optical pulsar is roughly in diameter and has the rotational period about 33 \" milliseconds , that is , the pulsar \" beams \" perform about 30 \" revolutions per second ."}
{"mythical figure": [], "geographical phenomenon": [], "instrument": []}